Air-pump.



No. 68!,597. Patented Aug. 27, I901. E. WALTHEB.

AIR PUMP.

(Application filed Apr. 28, 1901.)

(No Model.)

m: NORRIS PEYERS co. PHOTO-LITNOV, wumn mom u. c,

nrrnn STATES PATENT Genres.

EDWARD WALTHER, OF WASHINGTON, IOWA.

AIR-PUMP.

SPECIFICATION forming part of Letters Patent No. 681 ,597, dated August 27, 1901.

Application filed April 23,1901.

T0 (tZZ whom it may concern.-

Be it known that I, EDWARD WALTHER, a citizen of the United States, residing at VVashington, in the county of \Vashington and State of Iowa, have invented new and useful Improvements in Air-Pumps, of which the following is a specification.

My invention relates to pumps for carbureters; and the object of the same is to provide a pump which will supply the air at the desired pressure and be provided with a cutofi which is operated by the rise of pressure of the air. This obj eot is accomplished by the simple and novel construction described in this specification and claimed, and illustrated in the accompanying drawings, forming a part thereof, in which Figure 1 is a vertical longitudinal section through my pump and generator. Fig. 2 is a detail of the cut-off arm.

Like numerals of reference designate like parts in both views of the drawings.

The numerals 1 and 2 each designate a pumping-bell, which bells are mounted in tubs 3 and at, respectively. These tubs are filled with water up to the line at. A storagebell 5 is mounted in a tub 6, placed interme' diate the tubs 3 and 4. The bells 1 and 2 are both weighted to sink to the bottom of the tubs even when filled with air at atmospheric pressure. The bell 5 normally sinks to the bottom, but is light enough to be raised by the introduction of air a little above atmos pheric pressure. Connected to the top of each of the bells 1 and 2 is a curved pipe 7, provided with a valve 8, mounted to close the downturned mouth 9. U-pipes 10, provided with valves 11, pass down through the bottoms of the tubs 3 and 4 and up into the bell 5 and establish communication between the pump-bells and the storage-bell.

Means for operating the bells 1 and 2 is provided by a grooved wheel 12, mounted on a horizontal shaft 13, journaled in a stationary frame 14:. A cable or rope 15 passes over the grooved wheel 12 and is connected at its extremes to the pump-bells l and 2. To oscillate the wheel 12, it is adjustably connected by a rod 16 to the lower arm 17* of a lever 17, fulcrumed on a pin 18, mounted in the frame 14. The upper arm 17 of the lever 17 is pivoted to the connecting-rod 18 of a horizontal Serial No. 57,062. (No model.)

engine 19. A pipe 20, fitted with a valve 21, supplies the engine 19 with steam or fluid under pressure. An arm 22 is connected to the stem of the valve and extends out over the bell 5. The outer end 23 of the arm 22 is adjustable and is located to be engaged by the bell as it rises. This action operates the Valve 21 and cuts off the supply of power to the engine. On the descent of the bell 5 the valve 21 would be opened.

The bell 5 is connected by an upturned pipe 24 to a carburetor 25. This carburetor 25 comprises a shallow tank 20, within which is mounted a chamber 27, perforated at 28 and connected to the pipe 2 1. A transverse perforated horizontal partition 28 divides the tank 26 into two parts and assists in confining the air and forces it to break up into bubbles. A reservoir 29 is connected by a pipe 30 to the tank 26. A float 31, inclosed in a chamber 32, regulates the flow of gasolene. A burner 2 is connected by a pipe 33 to the tank 26.

In operation the reservoir 29 is filled with gasolene, which will flow into the tank 26 until stopped by the operation of the float 31 closing the valve. The engine 19 is then started, which will actuate the connectingrods, oscillate the wheel 12, and operate the bells 1 and 2. These bells will take in air on the upstroke and give it out on the downstroke, which air will pass into the bell 5 by way of the pipes 10. The return of the air is prevented by the valves 11. This air will find an outlet through the pipe 24, through which it will pass to the carburetor 25. On traversing the perforated chamber 27 the air will be broken up into bubbles, which will rise through the gasolene and convert it into gas. The gas-laden air will then rise to the burner 32 and be consumed.

I do not wish to be limited as to details of construction, as these may be modified in many particulars without departing from the spirit of my invention.

Having thus described my invention, what I claim as new, and wish to secure by Letters Patent, is-

In a device of the class described, the combination with pumping-bells mounted in tubs, a storage-bell mounted in a tub and placed intermediate said pumping-bells, U -tubcs connecting said pumping-bells and said storage-bell, a grooved yvheel journaled on a horizontal axle, a cable passing over said wheel and connected to said pumping-bells, an engine, a lever having one arm connected to said engine, a connecting-rod pivoted to said lever and said wheel, a steam-pipe connected to said engine and provided with a valve, and an adjustable arm connected to said valve 10 and located to be engaged by said storagebell as it rises to shut off the steam, siibstan= tially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit nesses.

EDWARD WALTHER,

Witnesses:

, FRANK G. RADELFINGER,

GUY E. PADGETT. 

